Stapler



FIG. 1 is a perspective view from upper left front of the stapler showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side elevational view thereof, the opposite side being a mirror image; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for stapler, as shown and described. 